Frangible closure for a container



5, 1969 R. F. HENDRlCKSON ETAL 3,459,322

FRANGIBLE CLOSURE FOR A CONTAINER Filed Feb. 12, 1968 1,1111 I'll/Ir! D will. Ill-I h I'I'IIIIJ'I'IIIII) United States Patent 3,459,322 FRANGIBLE CLOSURE FOR A CONTAINER Richard F. Hendrickson, Erie, and Roderick V. King, Girard, P3,, assignors to Sterling Seal Company, a corporation of Pennsylvania Filed Feb. 12, 1968, Ser. No. 704,721 Int. Cl. B65d 41/00 US. Cl. 22027 6 Claims ABSTRACT OF THE DISCLOSURE The disclosure herein provides a cap suitable for use with an aerosol container or the like wherein the cap itself is made of a relatively thin, fairly flexible plastic material and a reinforcing ring made of a relatively rigid metal, is placed inside the cap adjacent the closed end and another reinforcing ring around the inside adjacent the rim at the open end. The plastic can be curled inwardly to hold the ring. The ring can be made to snap over a rim on the container to hold it in place permanently until some tamper-proof element is removed. Any suitable tamper-proof structure can be applied.

This invention relates to aerosol caps and the like and more particularly to caps commonly known as tamperproof caps.

It is, accordingly, an object of the invention to provide an improved aerosol container cap.

Another object of the invention is to provide an improved cap for a container.

Another object is to provide an improved cap and container combination.

With the above and other objects in view, the present invention consists of the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing and more particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, proportions, and minor details of construction without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings:

FIG. 1 is a longitudinal cross-sectional view of the cap according to the invention;

FIG. 2 is a longitudinal cross-sectional view of the cap similar to FIG.1; and

FIG. 3 is a longitudinal cross-sectional view of another cap according to the invention.

Now with more particular reference to the drawings, the cap shown in FIG. 1 has a generally cylindrical body portion 11 having a first end 12 and a second end 13 with a closed end 14 integrally fixed to the cap at first end 12. The second end 13 receives a metal ring 15 which may be generally cylindrical in formation but may be threaded as shown and the body of the cap may be formed around it and curled around it at 16 to hold the ring in position. The cap may be scored around its periphery at 17 so that the upper part of the cap may be removed from the can, thus rendering it tamper-proof. The central part of the ring at 18 may be curled. The outside surface of the ring 15 is in contact with the inside surface of the cap over substantially the entire area of the ring.

A second ring 21 could be inserted in the first end 12 of the cap at to reinforce the cap.

In the embodiment of the invention shown in FIG. 2, the cap has a cylindrical intermediate part 111 having a first end 112 closed by a suitable closure and a second end 113 that is flared outwardly at 114 and has a ring 115 having rolled threads on it. The ring 115 has a generally cylindrical part 117 that is generally concentric 3,459,322 Patented Aug. 5, 1969 to the cylindrical part 111. A scored line 119 in the cap is provided so that cap can be ruptured at the scored line and so that the upper part of the cap can be screwed out of the ring while the dents 120 may be disposed under the upper rim of an aerosal can or it could be iznlapped under notches such as notches 234 shown in In the embodiment of the invention shown in FIG. 3, the cap shown is like those in FIGS. 1 and 2 and is made of relatively thin material and has the intermediate cylindrical portion 211 with a first end 212 closed by a closure member 213, and a second end 214 curled to form a bead 215 around the lower end of the ring 216. The ring 216 is curled at its open end at 220 inside curled bead 215.

The annular part 230 of the ring has an opening 231 that receives the open end of an aerosol can 232 and snaps under a shoulder 233. Notches 234 may snap under overhanging bead 215.

The foregoing specification sets forth the invention in its preferred practical forms but the structure shown is capable of modification within a range of equivalents without departing from the invention which is to be understood is broadly novel as is commensurate with the appended claims.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A cap for an aerosol can or the like comprising a generally cylindrical body having a first end and a second end closed at said first end and open at said second end,

said body being made of relatively thin material,

a ring made of relatively rigid material attached to said open end generally concentric thereto,

said rim of said cap adjacent said second end being formed around a portion of said ring whereby said ring is held in position on said cap,

the outside surface of said ring being generally coextensive with end in intimate contact with the inside surface of said cap over substantially the entire outside surface of said ring.

2. The cap recited in claim I wherein said ring has a first end and a second end,

said first end of said ring being spaced from said open first end of said cap,

said second end of said cap being curled around said ring,

said first end of said ring having a radially inwardly extending flange,

said flange defining a central opening adapted to receive the valve assembly of an aerosol can.

3. The cap recited in claim 2 wherein a scored line is formed in said cap substantially entirely around it and spaced from said second end at substantially the midposition of said ring whereby said cap can be separated into two parts at said second line.

4. A cap for an aerosol can or the like comprising a generally cylindrical body having a first end and a second end closed at said first end and open at said second end,

said body being made of relatively thin material,

a ring made of relatively rigid material attached to said open end generally concentric thereto,

said rim of said cap adjacent said second end being formed around a portion of said ring whereby said ring is held in position on said cap,

said cap being flared outward forming an annular member generally parallel to said closed end at its second end,

said ring is formed to overlie a generally cylindrical part of said cap adjacent said open end,

said ring is likewise formed to overlie said radially outwardly extending portion,

said ring is formed to overlie a generally cylindrical portion generally concentric to said cylindrical part of said cap.

5. The cap recited in claim 3 wherein said cap has a thread formed therein adjacent said second end.

6. A cap for an aerosol can or the like comprising a generally cylindrical body having a first end and a second end closed at said first end and open at said second end,

said body being made of relatively thin material,

a ring mae of relatively rigid material attached to said open end generally concentric thereto,

said rim of said cap adjacent said second end being formed around a portion of said ring whereby said ring is held in position on said cap,

said cap being flared outward forming an annular member generally parallel to said closed end at its second end,

said ring is formed to overlie a generally cylindrical part of said cap adjacent said open end,

said ring is likewise formed to overlie said radially outwardly extending portion,

said ring is formed to a second generally cylindrical portion generally concentric to said cylindrical part of said cap,

said second cylindrical portion having dents formed therein,

said dents being adapted to resiliently engage a downwardly facing portion of a can.

References Cited UNITED STATES PATENTS 2,262,021 11/1941 Lockwood 220-39 2,492,847 12/ 1949 Coyle et al. 220-39 3,001,657 9/1961 Gamble 22027 GEORGE T. HALL, Primary Examiner US. Cl. X.R. 

